Staggered Truss Adapted to High Rise
The 34-floor Nashville Convention Center Hotel required a structural system that would overcome the tendency to vibrate in the wind. The solution was a modified staggered frame truss,...
Building in Space
Work on the nation's first permanently manned space station has begun. Almost $200 million in contracts for conceptual design for the station were awarded by the National...
Changing Attitudes Towards Elevated Structures
This paper examines the reaction of professionals and politicians to specific examples of proposals for new public transport systems that entail elevated structures in central areas. When...
Continuum Modeling of Periodic Truss Structures
Procedures for deriving equivalent stiffnesses for an extended Timoshenko beam used to represent truss beams are presented. A typical substructure of a truss is used to calculate these...
Use of Computer Graphics in the Analysis of Large Space Structures
This paper illustrates how interactive computer graphics can provide a useful tool in setting up analytical models of structural latticeworks comprised of large numbers of degrees of freedom...
A Space Frame Forecast
New York City's Jacob K. Javits Convention Center has the largest space frame of its kind in the world. There are several unique design features in the space frame, among...
The Practitioner's Approach to Infrastructure Master Planning: The State of the Art
Infrastructure master planning is still a disjointed practice, but recent empirical work provides a base from which coordinated efforts, tying together the various sectors, are possible....
Reinforcing Roof Truss Frames Under Load
Without altering the roof structure of an industrial boiler plant, a long-span steel truss frame was modified in place to support heavier loads. The owners of an industrial boiler plant...
Strength and Stiffness Characteristics of Steel Ladder-Type Cable Trays
Ladder-type cable trays identical with the as-built are generally tested to establish their strength and stiffness characteristics. Test data for systems in operating plants, however,...
High Tech Is More Than a Look
Hollow steel section, also known as tubular steel, is being used for its clean dramatic look, its structural efficiency in compression, the economic efficiency of combining structure and...
Underground
The Civil and Mineral Engineering Building at the University of Minnesota in Minneapolis was designed with careful attention to the environment. In the years ahead, this building will...
Rehabbing Historic Buildings
Historic buildings often require structural upgrading before the cosmetics of restoration can be applied. Two case studies are presented here. The Four Seasons Hotel in Seattle required...
Frame Program
A plane frame program for structural analysis that is short to program and easy to understand is presented. Included inl article is a complete print-out of the program with a step-by-step...
Wood Trusses and Other Manufactured Structural Components
Roof trusses, floor trusses, wood I and box beams, and glued-laminated timber are discussed. Some of the major recommendations for future research include improved analytical techniques...
Compression Rings Support Deep Cut
The plans for building the Cuyahoga Valley Interceptor Lift Station in Cleveland, Ohio, called for 126 ft. (38.4 m) by 105 ft. (32 m) construction, some 80 ft. (24.4 m) below grade. Bracing...
Big New Radio Telescope Array Listens in on Space
The world's most powerful radio telescope is so sensitive that it can detect a small CB rig operating on a distant planet. The Very Large Array (VLA) Radio Telescope Facility...
Building Rehabilitation: The Last Resort
Rehabilitation of buildings often seems initially cheaper than new construction, but the hidden costs of renovation are making many builders prefer new structures. The advantages of new...
Space Shuttle
In modifying the decade-old Apollo man-to-the-moon launch facilities at Cape Kennedy, FL, for the forthcoming Space Shuttle mission NASA and contractors made two major innovations: To...
Notched Trusses Give Low-Cost Conversion of Hangars for Jumbo Jets
Physically notching the structural members in a hangar roof solved the problem of moving new DC-10 aircraft into and out of maintenance hangars built for smaller, earlier-generation commercial...
Largest Inverted Shell Houses Two Theaters
A meeting center in Albany, New York, has such a complex shape that it took months just to design its surface mathematically. Perched on a pedestal, it is nearly elliptical in plan. From...
Return to search